Science

Thursday, 19 March 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Brain
The brain produces about 25 watts of energy.
It does not happen that the brain does not function even for a nanosecond. It constantly analyzes, t ...
Milky Way
A galactic year is the period during which the Sun orbits the center of the galaxy.
It lasts about 230 - 240 million years. The solar system moves around the center of the Milky Way at an average speed of 230 km/s (828,000 km/h).
Cosmos
The Sun has a diameter of 1.392.684 kilometers.
It is about 109 times larger than the Earth and its mass is approximately 333.000 Earth masses. The Sun accounts for about 99.86 percent of the mass of the solar system.
Tears
Insincere or inauthentic regret is called “crocodile tears.”
The term derived from a belief that crocodiles cry to lure and devour their prey. It is untrue, howe ...
Brain
Brain cells are produced throughout life.
Until the publication of research on neurogenesis in 2018, it was assumed that the process of creating neurons ends in childhood.
Enceladus
In the equatorial region, the thickness of the Enceladus ice sheet is approximately 35 km.
Milky Way
Until 1920, most astronomers believed that the Milky Way contained all the stars in the universe.
Only observations made by Edwin Hubble made humanity realize that it is only one of many galaxies.
Moon
The period when the moon orbits the Earth is called a sidereal month, and it lasts 27,3 days.
lava
The most common type of lava in Hawaii and Iceland is pahoehoe.
It is also known as "smooth, unbroken lava". It is characterized by low viscosity, a large amount of ...
NASA
In 1998, NASA, in collaboration with Roscosmos (Russia), ESA (Europe), CSA (Canada), and JAXA (Japan), launched the first component of the International Space Station (ISS).
The ISS program evolved from the 1980s Space Station Freedom program. The first long-term residents ...